Finding the Fourth Proportional to 2,945.78, 4,415.91 and 996.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,945.78 : 4,415.91 = 996.62 : x
2. Step 2: Convert to fraction form
   2,945.78/4,415.91 = 996.62/x
3. Step 3: Cross multiply
   2,945.78x = 4,415.91 × 996.62
4. Step 4: Simplify right side
   2,945.78x = 4,400,984.22
5. Step 5: Solve for x
   x = 4,400,984.22/2,945.78
6. Step 6: Final answer
   x = 1,494.00